what part of the UGPS faces south?

I understand the UGPS must face south if living in the Northern Hemisphere but what part of the UGPS should aim south for maximum results?  Another way of saying this is, what part of the UGPS is the face of the antenna?  

The antenna points skyward (i.e. up).

It does not matter which direction the unit faces.

Matt, 

Okay, thanks for the reply.  It looks like the thing has two antenna faces that form a pyramid but one face is larger than the others so I was just curious.  Thanks.